Myth: 1 G barrel rolls are impossible.

Mxsmanic wrote in
:

writes:

Up, then down, until it hits what someone so nicely described as 'the
hard edge of the sky". Is your assertion that is orbital?

Absolutely. The orbit doesn't seem like an orbit because it
intersects the planet's surface, but if the Earth were a dimensionless
point with the same mass, the track would be an ellipsoidal orbit
around that point.

Ballistic tracks at the surface are the very tips of very eccentric
orbits that intersect the Earth.




Uh, nope.


Bertie

Bertie the Bunyip writes:

And if you find everyone so tedious, why stay?

I don't find everyone here tedious. There are lots of stupid people in the
world, but that doesn't mean I should write off the entire species. I have a
lot of patience.

writes:

The intitial velocity limitation says 'vertical'. I don't care what
size the 'walnut' is, it will be impacted given there was no
horizontal velocity component.

There is always a horizontal component, although one isn't really necessary.

Even if there was, by the way, the Newtonian physics demand the path
will cross the starting point, and the implication to most readers
would be that was on a surface.

If there's a surface in the way, the starting point and ending point will be
different.

On Jun 16, 12:46 pm, Mxsmanic wrote:
writes:
The intitial velocity limitation says 'vertical'. I don't care what
size the 'walnut' is, it will be impacted given there was no
horizontal velocity component.

There is always a horizontal component, although one isn't really necessary.

Even if there was, by the way, the Newtonian physics demand the path
will cross the starting point, and the implication to most readers
would be that was on a surface.

If there's a surface in the way, the starting point and ending point will be
different.

Care to write an equation or two to demonstrate that? It's a two body
problem, one massive with respect to the other. The initial conditions
are a vertical impulse from the surface, of a massive sphere. That's
high school physics.

In rec.aviation.piloting Mxsmanic wrote:
El Maximo writes:

It's called orbital velocity

http://electronics.howstuffworks.com/satellite3.htm

Any object following a ballistic trajectory (disregarding aerodynamic effects)
is in orbit.

Stardate 1369.000001

The starship Redundant has just come out of warp and is approaching
Fjukktard IV.

On the bridge...

Captain: Helmsman, assume a standard orbit around the planet.

Helmsman: Aye, Aye, sir.

(Sounds of engines adjusting)

Captain: Tactical! We're heading straight for the planet!
Have the inhabitants locked on to us with some sort of tractor beam?

Tactical: Negative sir, Helmsman Mxsamanic has put us on a collision
course with the planet.

Captain: Mr Mxsmanic, what the hell is going on?

Helmsman: Well, sir, you said assume an orbit and any object
following a ballistic trajectory (disregarding aerodynamic effects) is
in orbit, so I...

(Anything further from Mr Mxsmanic is unintelligible as the Captain
has both hands firmly around his neck)

Captain: Navigator, take the helm and put us in a real orbit! Security,
throw Mr Mxsmanic out off the nearest airlock!

--
Jim Pennino

Remove .spam.sux to reply.

Why would you want to throw Mx from an airlock? If you did it after
adjusting the orbit, he'd contribute to space junk after getting his
black belt in Internet Pest.

The airlock idea for storage is a good idea though. Don't do a bleed
to space, that would mess up the insides of the airlock as badly as
the insides of some microwave ovens.



On Jun 16, 3:05 pm, wrote:
In rec.aviation.piloting Mxsmanic wrote:

El Maximo writes:
It's called orbital velocity

http://electronics.howstuffworks.com/satellite3.htm
Any object following a ballistic trajectory (disregarding aerodynamic effects)
is in orbit.

Stardate 1369.000001

The starship Redundant has just come out of warp and is approaching
Fjukktard IV.

On the bridge...

Captain: Helmsman, assume a standard orbit around the planet.

Helmsman: Aye, Aye, sir.

(Sounds of engines adjusting)

Captain: Tactical! We're heading straight for the planet!
Have the inhabitants locked on to us with some sort of tractor beam?

Tactical: Negative sir, Helmsman Mxsamanic has put us on a collision
course with the planet.

Captain: Mr Mxsmanic, what the hell is going on?

Helmsman: Well, sir, you said assume an orbit and any object
following a ballistic trajectory (disregarding aerodynamic effects) is
in orbit, so I...

(Anything further from Mr Mxsmanic is unintelligible as the Captain
has both hands firmly around his neck)

Captain: Navigator, take the helm and put us in a real orbit! Security,
throw Mr Mxsmanic out off the nearest airlock!

--
Jim Pennino

Remove .spam.sux to reply.

"Mxsmanic" wrote in message
...
El Maximo writes:

I'm sure there are enough definitions of orbit for you to choose from
that
you wouldn't bother learning, only arguing.

In other words, I am not in error.

No, in other words, you do not understand.

writes:

Care to write an equation or two to demonstrate that?

You need an equation?

I throw a baseball into the air. It lands twenty feet away. The starting
point and ending point are different.

It's a two body
problem, one massive with respect to the other. The initial conditions
are a vertical impulse from the surface, of a massive sphere. That's
high school physics.

I finished high school a long time ago.

writes:

Helmsman: Well, sir, you said assume an orbit ...

No, the captain said assume a _standard_ orbit, which presumably would not
intersect the planet's surface.

Read the post -- it specified vertical. It may be your concept of
vertical is different than the one commonly accepted. If your throw
was vertical you had aerodynamic effects, disallowed earlier in your
earlier post.

I would have suspected you did finish high school some time ago. That
you have forgotten what you learned is obvious.



On Jun 16, 4:16 pm, Mxsmanic wrote:
writes:
Care to write an equation or two to demonstrate that?

You need an equation?

I throw a baseball into the air. It lands twenty feet away. The starting
point and ending point are different.

It's a two body
problem, one massive with respect to the other. The initial conditions
are a vertical impulse from the surface, of a massive sphere. That's
high school physics.

I finished high school a long time ago.